linux-toradex.git/tools/testing/selftests/filesystems/statmount, branch master

selftests/filesystems: check listmount() with a U64_MAX cursor

2026-10-22T16:50:19+00:00

Pass the largest possible mount id as the cursor and check that
listmount() returns no entries instead of starting over at the first
mount.

Link: https://patch.msgid.link/20261021-work-mount-statmount_listns_fixes-v1-4-8917a4c1bd14@kernel.org
Signed-off-by: Christian Brauner (Amutable)

selftests/filesystems: check short buffers for statmount() strings

2026-10-22T16:50:19+00:00

Request strings that end up empty with buffers that aren't larger than
the fixed part of struct statmount and check that:

- every request fails with EOVERFLOW

- nothing is written past the end of the buffer, a guard page right
  behind it catches that

The buffer sizes run from zero up to sizeof(struct statmount) and the
requests cover STATMOUNT_FS_TYPE, STATMOUNT_FS_SUBTYPE and
STATMOUNT_MNT_UIDMAP.

Link: https://patch.msgid.link/20261021-work-mount-statmount_listns_fixes-v1-2-8917a4c1bd14@kernel.org
Signed-off-by: Christian Brauner (Amutable)

bfs: remove the filesystem

2026-09-04T10:43:07+00:00

BFS (not to be confused with BeFS, the BeOS filesystem) is the
filesystem UnixWare uses for its boot partition. It has extremely
limited functionality, only supporting contiguous files and no
subdirectories. Even though the bfs driver is very small and is
unlikely to cause future maintenance problems, given that the only type
of data stored on such a partition is likely to be kernels and
bootloader settings, there is very little reason anyone would want to
access it from Linux. Other old Unix filesystems (efs, freevxfs) have
been removed recently, and bfs is highly unlikely to have any users, so
remove it as well. Retain the UAPI header to be safe.

Also update the former maintainer's email address in CREDITS.

Signed-off-by: Ethan Nelson-Moore 
Link: https://patch.msgid.link/20260904082954.48738-1-enelsonmoore@gmail.com
Acked-by: Jan Kara 
Acked-by: Lorenzo Stoakes (ARM) 
Acked-by: Tigran Aivazian 
Signed-off-by: Christian Brauner (Amutable)

selftests/statmount: Fix file descriptor leak in setup_namespace

2026-07-31T08:09:06+00:00

In setup_namespace(), f_mountinfo is opened with fopen() at line 115
but is never closed. Multiple ksft_exit_fail_msg() calls exit the
program without closing this file descriptor, and the cleanup_namespace()
function registered with atexit() also doesn't close it.

Add fclose(f_mountinfo) in cleanup_namespace() to ensure the file
descriptor is properly closed on both normal and error exit paths,
since cleanup_namespace() is already registered as an atexit handler.

Signed-off-by: Malaya Kumar Rout 
Link: https://patch.msgid.link/20260704120437.99851-1-malayarout91@gmail.com
Signed-off-by: Christian Brauner (Amutable)

selftests/filesystems: fix spelling error in statmount test comment

2026-07-31T08:09:06+00:00

Fix typo "didnt't" -> "didn't" in statmount_test.c comment.

Signed-off-by: Wang Yan 
Link: https://patch.msgid.link/20260702015428.363642-1-wangyan01@kylinos.cn
Signed-off-by: Christian Brauner (Amutable)

selftests/statmount: remove duplicate wait_for_pid()

2026-04-14T07:30:31+00:00

Remove the local static wait_for_pid() definition from
statmount_test_ns.c as it conflicts with the extern declaration in
utils.h. The identical function is already provided by utils.c.

Fixes: 3ac7ea91f3d0 ("selftests: add FSMOUNT_NAMESPACE tests")
Cc:  # mainline only
Signed-off-by: Christian Brauner

selftests/statmount: add statmount_alloc() helper

2026-03-12T12:33:54+00:00

Add a helper to allocate a statmount buffer and call statmount(). This
helper will be shared by multiple test suites that need to query mount
information via statmount().

Link: https://patch.msgid.link/20260122-work-fsmount-namespace-v1-5-5ef0a886e646@kernel.org
Signed-off-by: Christian Brauner

selftests: statmount: tests for STATMOUNT_BY_FD

2025-12-15T13:13:14+00:00

Add tests for STATMOUNT_BY_FD flag, which adds support for passing a
file descriptors to statmount(). The fd can also be on a "unmounted"
mount (mount unmounted with MNT_DETACH), we also include tests for that.

Co-developed-by: Andrei Vagin 
Signed-off-by: Andrei Vagin 
Signed-off-by: Bhavik Sachdev 
Link: https://patch.msgid.link/20251129091455.757724-4-b.sachdev1904@gmail.com
Signed-off-by: Christian Brauner

selftests: complete kselftest include centralization

2025-11-27T22:24:31+00:00

This follow-up patch completes centralization of kselftest.h and
ksefltest_harness.h includes in remaining seltests files, replacing all
relative paths with a non-relative paths using shared -I include path in
lib.mk

Tested with gcc-13.3 and clang-18.1, and cross-compiled successfully on
riscv, arm64, x86_64 and powerpc arch.

[reddybalavignesh9979@gmail.com: add selftests include path for kselftest.h]
  Link: https://lkml.kernel.org/r/20251017090201.317521-1-reddybalavignesh9979@gmail.com
Link: https://lkml.kernel.org/r/20251016104409.68985-1-reddybalavignesh9979@gmail.com
Signed-off-by: Bala-Vignesh-Reddy 
Suggested-by: Andrew Morton 
Link: https://lore.kernel.org/lkml/20250820143954.33d95635e504e94df01930d0@linux-foundation.org/
Reviewed-by: Wei Yang 
Cc: David Hildenbrand 
Cc: David S. Miller 
Cc: Eric Dumazet 
Cc: Günther Noack 
Cc: Jakub Kacinski 
Cc: Liam Howlett 
Cc: Lorenzo Stoakes 
Cc: Michal Hocko 
Cc: Mickael Salaun 
Cc: Ming Lei 
Cc: Paolo Abeni 
Cc: Shuah Khan 
Cc: Simon Horman 
Cc: Suren Baghdasaryan 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton

selftests/filesystems: create setup_userns() helper

2025-05-12T09:40:13+00:00

Add helper to utils.c and use it in statmount userns tests.

Reviewed-by: John Hubbard 
Signed-off-by: Amir Goldstein 
Link: https://lore.kernel.org/20250509133240.529330-8-amir73il@gmail.com
Reviewed-by: Christian Brauner 
Signed-off-by: Christian Brauner